[WikiEN-l] citing for wikipedia

[Gerrit]

David Gerard wrote:
> Quote from it only as much as you would from any encyclopedia, and cite it
> as you would any web page. If you want to cite the particular version you
> are referring to, click on the link to "Page history" and that will give
> you a pile of links to each version by date and time.

An old version can be referenced with &oldid=...
Is there a way to find the 'oldid' for the current version, so that one
can reference the version as it is now, with the guarantee that it will
be the same in the future?

regards,
Gerrit.

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-- 
In the councils of government, we must guard against the acquisition of
unwarranted influence, whether sought or unsought, by the
military-industrial complex. The potential for the disastrous rise of
misplaced power exists and will persist.
    -Dwight David Eisenhower, January 17, 1961